GMC Savana 2020 Owner's Manual page 148

The defogger only works when the
ignition is on. The defogger turns off
if the ignition is turned off or to ACC/
ACCESSORY.
Heated Mirrors: If equipped with
heated outside mirrors, the mirrors
heat to help clear fog or frost from
the surface of the mirror when
pressed. See Heated Mirrors 0 21.
Do not drive the vehicle until all the
windows are clear.
Caution
Do not use a razor blade or sharp
object to clear the inside rear
window. Do not adhere anything
to the defogger grid lines in the
rear glass. These actions may
damage the rear defogger.
Repairs would not be covered by
the vehicle warranty.
Rear Heating System
If equipped, the rear heating system
lets you adjust the amount of air
flowing into the rear of the vehicle,
from the front seating area. This
feature works with the main climate
control system in the vehicle.
1
is
AUX : The thumbwheel for this
system is on the instrument panel
below the audio system.
9
: Turn the thumbwheel up or
down to increase or decrease the
amount of heated air sent to the
rear seating area.
: This position supplies the most
amount of heat to the rear
seating area.
Climate Controls
c
: This position supplies half the
amount of heat to the rear
seating area.
: This position supplies the least
amount of heat to the rear
seating area.
9
: This turns the rear heating
system off.
Rear Climate Control
System
If equipped with a rear heating and
air conditioning system, it controls
the temperature, fan speed, and air
delivery for the rear seat
passengers only. The front climate
control panel is in the overhead
console between the driver and
front passenger.
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